Required Reading-Preop/Airway Flashcards

(51 cards)

1
Q

Majority of anesthetic complications are due to ___ injuries; these result from ____.

A

respiratory; difficult intubation, difficult airway, poor dentition

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2
Q

Factors affecting mask ventilation (5)

A

(1) Beard (2) BMI>26 (3) Missing teeth (4) Age>55 (5) Snoring

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3
Q

Determine preop CV functional capacity with _____. A score of greater or equal to ____ have better periop outcomes in NONcardiac surgery.

A

metabolic equivalent [MET] activity; 4 [raking leaving, weeding or pushing power mower; MET scores 1-12]

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4
Q

If sx not urgent, then active cardiac condition/clinical risk factors should be assessed preop. If cleared, low-risk sx have

A

endoscopic procedures, superficial procedures, cataract, breast, most ambulatory surgeries

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5
Q

Intermediate-risk sx for CV include ____. High-risk sx include ____

A

intraperitoneal, intrathoracic, carotid endarterectomy, head/neck, orthopedic; aortic, major vascular, peripheral vascular

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6
Q

Patients with a MET

A

heart rate control; cardiac testing

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7
Q

Pulmonary patient-related periop risks:

A

smoking, poor general health (ASA>2), age>70, obesity, COPD, reactive airway dz (asthma)

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8
Q

Pulmonary PROCEDURE-related periop risks:

A

surgery >3hr, gen anesthesia, type of sx, pancuronium

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9
Q

Risk reduction for pulmonary risks (A) preop (B) periop (C) postop

A

(A) smoking cessation for 8wks, tx COPD/asthma, Abx for URI, incentive spirometry (B) limit

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10
Q

Important to remember that hepatic dysfunction can cause ____ and ____.

A

altered coagulation; altered drug pharmacokinetics

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11
Q

GI dz can increase potential of ____, ____, ____ and ___.

A

aspiration; dehydration; electrolyte disturbances; anemia

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12
Q

All diabetics should be evaluated for ____, ____ and _____. Most docs will avoid ___ anesthesia due to peripheral neuropathy.

A

CAD, HTN, nephropathy (Cr levels); regional

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13
Q

Diabetics need to take ___ of morning dose insulin on day of surgery; if elective, should do earlier in day to avoid _____.

A

half; prolonged fasting

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14
Q

Physical exam consists of vitals, airway eval, cardiopulm, GI, MSK and neuro exam. Airway exam assesses ___

A

Mallampati score, facial trauma, large incisors, beard, large tongue, neck masses, tracheal deviation, thyromental distance (

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15
Q

Important to look at chronic pain and ___ use, because may lead to increased requirements during surgery. Also look for long-term ___ use, which can lead to ____ and may require supplementation during sx.

A

opioid; steroid; adrenal insufficiency

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16
Q

Supplements: ___ and ___ can potentiate anticoagulation meds, ___ can prolong anesthesia, ___ can cause arrhymias

A

ginko; garlic; St Johns Wort; Ephedra

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17
Q

Poss preop studies and indicated dz: (A) CBC (B) T/S & albumin (C) PT/PTT (D) Electrolytes

A

(A) CBC; EtOH, anemia, radiation therapy, etc. (B) T/S & albumin; hematologic dz, malnutrition (C) PT/PTT; hepatic dz, Fhx bleeding, anticoag (D) Electrolytes; renal dz, DM, etc.

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18
Q

Poss preop studies and indicated dz: (E) BUN/Cr (F) Glucose (G) AST/ALP (H) EKG (I) CXR

A

(E) BUN/Cr; cancer w/ chemo, renal dz, digoxin/diuretics (F) Glucose (G) AST/ALP; EtOH, cancer w/ chemo, statins (H) EKG; statins, digoxin, radiation, etc. (I)CXR; smoking hx, radiation therapy, rheumatoid arthritis, etc.

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19
Q

The purpose of the ____ is to discuss w/ pt or rep the types of anesthetic options available for planned procedure and explain risks/benefits

A

anesthesia consent form

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20
Q

ASA Class ___ is a normal and healthy patient

A

1

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21
Q

ASA Class ___ is a pt w/ mild systemic dz

22
Q

ASA Class ___ is a pt w/ severe systemic dz that limits activity, but is a constant threat to life

23
Q

ASA Class ___ is a pt w/ incapacitating system dz that is constant threat to life

24
Q

ASA Class ___ is moribund pt not expected to survive 24h w/ or w/o sx

25
ASA ___ designates emergency surgical procedure
E
26
If a pt is perceived as difficult to intubate/ventilate, obtain ____.
fiberoptic equipment and skilled help
27
If pt has heart dz/valve dz or risk of subacute bacterial endocarditis, consider ____ 1h prior to sx
prophylactic abx
28
If pt Fhx malignant hyperthermia, have ___ ready
dantrolene
29
If pt on MAOIs, discontinue therapy preop if pt not ____ and plan for periop pain therapy
suicidal
30
If pt has peripheral motor neuropathy, avoid _____ drugs
depolarizing muscle relaxants
31
If pt pregnant, use ____
oral antacids [monitor FHTs]
32
Types of anesthesia are __, ____, ___ and ___
general, MAC (monitored anesthesia care), regional, local
33
The best way to assess CV risk is asking about ____
exercise tolerance
34
DO NOT quit smoking w/in a short period before sx because will increase ___ and ____ temporarily. Must try to quit greater than ___ weeks preop.
coughing; sputum production; 8
35
Difficult laryngoscopy is defined as when no portion of ____ is visualized.
glottis (vocal cords and space)
36
Medical conditions that portend difficult airway include ___
hx facial trauma/sx, rhuematoid arthritis, pregnancy, epiglottitis, previous cervial fusion, neck masses, Down's syndrome, Treacher-collins, Pierre-Robin abnormalities
37
Increasing difficult laryngoscopy correlated with Mallampati Class ____ and ___
3; 4
38
Mask ventilation needs optimal ____, ____ visualized as pt in "sniffing" position, and sufficient ____ to overcome resistance of upper airway.
seal; oropharynx; positive pressure
39
Mask ventilation is to augment a pt's spontaneous ____ before definitive airway management.
tidal volumes
40
___ can be used in pts receiving gen anesthesia w/ no endotracheal intubation and in situations when mask vent is difficult.
LMA
41
LMA does NOT enter the _____, therefore pts tolerate it with less anesthetic; also, LMA does NOT protect against ____ to same degree.
glottis; pulmonary aspiration
42
Contraindications to LMA include ___, ____, ____ and ___
increased risk pulmonary aspiration; pts w/ PEEP ventilation; long procedures; any position other than supine
43
Common errors in direct laryngoscopy include ____ and ____
inserting blade too deeply; improperly sweeping tongue from line of signt
44
MC laryngoscope blades are ____ [curved} and ____ [straight]
Macintosh; Miller
45
Because of anatomical narrowing at level of cricoid cartilage in children ____ tubes are used and a seal forms directly between tube and trachea.
uncuffed
46
Endotracheal intubation is gold standard b/c reduces possibility of ____ and increases amount of ____ that can be achieved via mech ventilation.
aspiration via gastric juices; positive airway proessure
47
Risk factors for aspiration have to do with having eaten and include :
trauma pts, emergency sx (not fasting), pregnant pts in labor, GERD, DM/obesity, neurological impairment
48
In order to dec time when pt awake (intact laryngeal m protecting from aspiration) and endotracheal tube, a ____ can be done.
RSI (rapid sequence induction)
49
Rapid sequence induction does NOT use ____ (avoiding stomach distention), ____ pressure is maintained , and ___ is muscle relaxant drug of choice
mask ventilation; cricoid [surrounds trachea and will collapse esophagus lumen]; succinylcholine [rocuronium if burn or SC injury pts]
50
Fiberoptic intubation can be accomplished in ____/____ patients.
awake [w/ local anesthesia]; anesthetized
51
Two types of video assisted endotracheal intubation include ___ and ___ and are used if limited mouth opening.
Glidescope, C-Trach